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JAMB Chemistry 2006 Question 29

Question 29

Solubility and Solutions

When a crystal was added to the clear solution of its salt, the crystal did not dissolve and the solution remained unchanged. This showed that the solution was

  1. A.supersaturated
  2. B.concentrated
  3. C.unsaturated
  4. D.saturated
Show the answer and explanation

Answer: D (saturated)

Explanation

A saturated solution can hold no more solute at that temperature, so an added crystal neither dissolves nor grows. (In a supersaturated solution more crystals would form.)